I can't imagine PT's at a professional commercial gym insulting gym members that way. Their job is to promote health and fitness to all the members, not just their clients. I assume they are young and inexperienced. Did they say that crap to your face? Sounds like maybe it was one of those "he said, she said" deals. In which case you may not be getting the true story. In the end, if they really did that, I wouldn't be paying any dues to a gym full of hater PT's.